18937672

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{863}}^1$

素因数の和:1093

約数の個数: 32

約数和(自身を含む): 38465280

約数和(自身を除く): 19527608

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 211, 422, 844, 863, 1688, 1726, 2743, 3452, 5486, 6904, 10972, 11219, 21944, 22438, 44876, 89752, 182093, 364186, 728372, 1456744, 2367209, 4734418, 9468836, 18937672]

約数ペア:

[(1, 18937672), (2, 9468836), (4, 4734418), (8, 2367209), (13, 1456744), (26, 728372), (52, 364186), (104, 182093), (211, 89752), (422, 44876), (844, 22438), (863, 21944), (1688, 11219), (1726, 10972), (2743, 6904), (3452, 5486)]